The dyad gets its name from passing through or asunder; for the dyad is the first to have separated itself from the monad, whence also it is called "daring." For when the monad manifests unification, the dyad steals in and manifests separation.
In the metaphor of arithmetic , the dyad reveals itself as the door between the One and the Many, between monad and all other numbers.
The Greeks observed a paradox about the dyad : While it appears separate from unity, its opposite poles remember their source and attract each other in an attempt to merge and return to the state of unity. The dyad simultaneously divides and unites, repels and attracts, separates and returns.
Knowledge and wonder are the dyad of our worthy lives as intellectual beings. Voyager did wonders for our knowledge, but performed just as mightily in the service of wonder and the two elements are complementary, not independent or opposed. The thought fills me with awe a mechanical contraption that could fit in the back of a pickup truck, traveling through space for twelve years, dodging around four giant bodies and their associated moons, and finally sending exquisite photos across more than four light-hours of space from the farthest planet in our solar system.stephen jay gould